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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/27429
Title: Vulcanization: New focus on a traditional technology by small-angle neutron scattering
Authors: Yuko Ikeda
Norihito Higashitani
Kensuke Hijikata
Yota Kokubo
Yuichi Morita
Mitsuhiro Shibayama
Noboru Osaka
Takuya Suzuki
Hitoshi Endo
Shinzo Kohjiya
Kyoto Institute of Technology
University of Tokyo
Mahidol University
Keywords: Chemistry;Materials Science
Issue Date: 14-Apr-2009
Citation: Macromolecules. Vol.42, No.7 (2009), 2741-2748
Abstract: Vulcanization is the most important and conventional process in preparing rubber products. Network structure in the vulcanizates has been assumed to dominantly determine their physical properties together with network-chain density. Therefore, control of network structure in the vulcanizates is of at most importance for a fundamental design of rubber products. However, inhomogeneity of the network structure has not been much elucidated in spite of the long history of vulcanization since 1839, due to the complicated reactions among rubber and cross-linking reagents. Here, we look more closely at vulcanization and show its new role to control the network inhomogeneity on the basis of small-angle neutron scattering analysis of vulcanized rubbers. Combination and composition of the cross-linking reagents, especially those of zinc oxide with the other reagents, were found to be crucial for the control. A characteristic feature of strain-induced crystallization of the vulcanizates is also accounted for by the notion of network inhomogeneity. These results will be useful for further enhancing the technological potential of the traditional yet indispensable vulcanization. © 2009 American Chemical Society.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=66649108042&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/27429
ISSN: 00249297
Appears in Collections:Scopus 2006-2010

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